3453643 has 4 divisors (see below), whose sum is σ = 3497440. Its totient is φ = 3409848.

The previous prime is 3453641. The next prime is 3453647. The reversal of 3453643 is 3463543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3463543 = 1289 ⋅2687.

It is a cyclic number.

It is not a de Polignac number, because 3453643 - 2¹ = 3453641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3453641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21780 + ... + 21937.

It is an arithmetic number, because the mean of its divisors is an integer number (874360).

Almost surely, 2^3453643 is an apocalyptic number.

3453643 is a deficient number, since it is larger than the sum of its proper divisors (43797).

3453643 is an equidigital number, since it uses as much as digits as its factorization.

3453643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43796.

The product of its digits is 12960, while the sum is 28.

The square root of 3453643 is about 1858.3979659911. The cubic root of 3453643 is about 151.1561474079.

It can be divided in two parts, 3453 and 643, that added together give a 12-th power (4096 = 2¹²).

The spelling of 3453643 in words is "three million, four hundred fifty-three thousand, six hundred forty-three".